Here's the official description of Grimm season 2 episode 10 "The Hour of Death" which airs on Friday, Novermber 2 on NBC.
A SERIAL KILLER DESCENDS ON PORTLAND AND THE WESEN COMMUNITY IS IN GRAVE DANGER --
- When a brutal vigilante homicide is made public, it sends Portland’s Wesen community into a frenzy.
- As Nick (David Giuntoli) investigates further, he discovers a pattern similar to that of a particularly brutal line of past Grimms.
- Is there another Grimm in town, or is Nick dealing with a sadistic copycat?
- Meanwhile, Captain Renard (Sasha Roiz) takes it upon himself to offer Juliette (Bitsie Tulloch) comfort in handling her ongoing dilemma with Nick.